Fix iteration

aleksis/apps/tezor/models/invoice.py

@@ -59,12 +59,13 @@ class Invoice(BasePayment, PureDjangoModel):
             tax_amounts[item.tax_rate] += item.price / (item.tax_rate + 100) * item.tax_rate
 
         values = []
-        for tax_rate, total in tax_amounts:
+        for tax_rate, total in tax_amounts.items():
             values.append({
                 "name": _("Included VAT {} %").format(tax_rate),
                 "value": total,
                 "currency": self.currency,
             })
+
         values.append({
             "name": _("Gross total"),
             "value": self.total,